Suggested by Anonymous Hedgeshock is a thunder robot who is pretty talented. He can roll and zap with the best of them. That being said, it will definitely not be enough to down Pikachu. Pikachu has the overwhelming advantage in speed and I dare say that he wins in power as well. This makes for an incredible combo that cannot be surpassed. Hedgeshock may have some resistance to electricity, but it will not save him here. Pikachu wins.